CVE-2021-36691
CVSS v3
7.5
HIGH
EPSS Score
1.1 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
libjxl v0.5.0 is affected by a Assertion failed issue in lib/jxl/image.cc jxl::PlaneBase::PlaneBase(). When encoding a malicous GIF file using cjxl, an attacker can trigger a denial of service.
Technical details
- Published
- 2021-08-30
Frequently asked questions
What is CVE-2021-36691?
libjxl v0.5.0 is affected by a Assertion failed issue in lib/jxl/image.cc jxl::PlaneBase::PlaneBase(). When encoding a malicous GIF file using cjxl, an attacker can trigger a denial of service.
Is CVE-2021-36691 actively exploited?
Active exploitation of CVE-2021-36691 has not been confirmed. Its EPSS score was 1.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-36691?
CVE-2021-36691 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-36691 affecting your environment?
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